Synthesis of 6- and 7-(1,2,3-Trihydroxy-1,2-O-isopropylidenepropyl)pteridines and Deoxygenation of Their 3’-Hydroxy Groups
作者:Tadashi Hanaya、Daisuke Takayama、Hiroshi Yamamoto
DOI:10.3987/com-06-s(w)33
日期:——
Treatment of 3,4-O-isopropylidene-L-threo-pentos-2-ulose (7) with 5,6-diamino-1,3-dimethyluracil (8) afforded 1,3-dimethyl-6-[(1R,2S)-1,2,3-trihydroxy-1,2-O-isopropylidenepropyl]lumazine (9a) and its 7-substituted isomer (9b). Deoxygenation of 3'-hydroxy groups of 9a,b was investigated in connection with a practical transformation of neopterin into biopterin.